Did you know that you can easily (re-)setup DAVx5 via QR code by simply using this type of URL to automatically pre-fill the DAVx5 Login screen:
davx5://user@server.example.com/path/
You will need an appropriate QR code scan app like Binary Eye. Read more here:
8. Integration / API — DAVx⁵ documentation
Pro tip: save the QR code somewhere and whenever you want to re-setup simply scan it again ;-). Also great to help other not so tech savvy users by simply giving them a QR code!